WO2019230081A1

WO2019230081A1 - Wiring member

Info

Publication number: WO2019230081A1
Application number: PCT/JP2019/007017
Authority: WO
Inventors: 西村　哲也; 悠中野; 芳正水野
Original assignee: 株式会社オートネットワーク技術研究所; 住友電装株式会社; 住友電気工業株式会社
Priority date: 2018-05-30
Filing date: 2019-02-25
Publication date: 2019-12-05
Also published as: DE112019002733T5; JP6607282B1; CN112154522B; JP2019207816A; US20210210250A1; CN112154522A; US11152135B2

Abstract

The purpose of the present invention is to provide a feature for improving the flexibility of routing paths of conductors in a single flat wiring member. The wiring member is provided with a sheet material and multiple insulated electric wires routed so as to form an intersecting section on a main surface of the sheet material. For example, the insulation coatings of the lower-side electric wires at the intersecting section are fixed to the sheet material at the position of the intersecting section, and the thickness of the insulation coatings of the lower-side electric wire parts and/or that of the sheet material is reduced at the fixed section. In addition, for example, insulated electric wires constituting the upper-side electric wire parts at the intersecting section are fixed to the sheet material at a first position and a second position on both sides of the intersecting section.

Description

Wiring member

This disclosure relates to a wiring member.

For example, a flexible flat cable (FFC) or a flexible printed circuit board (FPC) exists as a flat wiring member that connects electrical components mounted on a vehicle (see, for example, Patent Document 1).

JP 2014-11910 A

However, in the above FFC and FPC, it is difficult to cross the conductors without short-circuiting them in one wiring member. For this reason, the arrangement | positioning path | route of the conductor in one wiring member was restrict | limited.

Therefore, an object of the present invention is to provide a technique capable of increasing the degree of freedom of a conductor arrangement path in a flat wiring member.

The wiring member of this indication is a wiring member provided with a sheet material and a plurality of insulated electric wires arranged so that it may have an intersection on the principal surface of the sheet material.

According to the present disclosure, it is possible to increase the degree of freedom of the conductor arrangement path in one flat wiring member.

FIG. 1 is a plan view showing a wiring member according to the embodiment. FIG. 2 is a schematic sectional view taken along line II-II in FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG. FIG. 4 is a schematic cross-sectional view showing a wiring member according to a modification. FIG. 5 is a schematic sectional view showing a wiring member according to a modification.

[Description of Embodiment of Present Disclosure]
First, embodiments of the present disclosure will be listed and described.
The wiring member of the present disclosure is as follows.
(1) A wiring member comprising a sheet material and a plurality of insulated wires arranged to have an intersection on the main surface of the sheet material.
By intersecting the insulated wires on the sheet material, it is possible to increase the degree of freedom of the conductor arrangement path in one flat wiring member.
(2) The insulation coating of the lower electric wire portion at the intersection is fixed to the sheet material at the position of the intersection, and the insulation coating of the lower electric wire portion at the fixed portion and the sheet material At least one of the thicknesses is preferably thin. This is because the height of the intersecting portion can be reduced, and the increase in the thickness of the wiring member can be suppressed.
(3) It is good for the insulated wire which comprises the upper side electric wire part in the said cross | intersection part to be fixed with the said sheet | seat material in the 1st position and 2nd position which pinch | interpose the said cross part, respectively. This is because even when the wiring member is bent, the upper wire portion is less likely to float.
(4) The distance between the first position and the second position is preferably 30 millimeters or less. This is because even when the wiring member is bent, the upper electric wire portion is less likely to float and the amount of the upper wire portion can be reduced.
(5) The interval between the first position and the second position is preferably 20 millimeters or less. This is because, even when the wiring member is bent, the upper electric wire portion is particularly difficult to float, and the amount when the wiring member is lifted can be further reduced.
(6) It is preferable that the distance between the first position and the second position and the intersecting portion is not less than the minimum bending radius of the insulated wire constituting the upper wire portion. This is because the upper electric wire portion that bends before and after the intersection is not easily damaged.
(7) The insulated electric wire constituting the upper electric wire portion has a different interval from the interval between the first position and the second position along the longitudinal direction even at locations other than the first position and the second position. It is good to open and fix to the sheet material. It is because it can fix according to the arrangement | positioning form of an insulated wire.
(8) The part which comprises the said crossing part among the said insulated wires is good in it being flat. This is because the height of the intersection can be reduced.
(9) It is preferable that a portion of the insulated wire other than the crossing portion that is not flatter than a portion constituting the crossing portion exists. This is because even when a general-purpose electric wire such as a round electric wire is used as the electric wire, the height of the intersection can be lowered.

[Details of Embodiment of the Present Disclosure]
Specific examples of the wiring member of the present disclosure will be described below with reference to the drawings. In addition, this invention is not limited to these illustrations, is shown by the claim, and it is intended that all the changes within the meaning and range equivalent to a claim are included.

[Embodiment]
Hereinafter, the wiring member according to the embodiment will be described. FIG. 1 is a plan view showing a wiring member 10 according to the embodiment. FIG. 2 is a schematic cross-sectional view taken along the line II-II in FIG. FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG.

The wiring member 10 is a member that connects electrical components mounted on the vehicle. The wiring member 10 is formed flat. The wiring member 10 includes a sheet material 20 and a plurality of insulated wires 30.

The sheet material 20 holds the plurality of insulated wires 30 in a flat state. Although the material which comprises the sheet | seat material 20 is not specifically limited, The sheet | seat material 20 is preferably formed with the material containing resin, such as PVC (polyvinyl chloride), PET (polyethylene terephthalate), PP (polypropylene). The The sheet material 20 may include a material such as a metal. The sheet material 20 preferably has flexibility. The sheet material 20 may be a single layer or a plurality of layers. In the case where a plurality of layers are laminated, for example, it is conceivable that a resin layer and a resin layer are laminated. For example, it is conceivable that a resin layer and a metal layer are laminated. For example, it is conceivable that a metal layer and a metal layer are laminated.

In the example shown in FIG. 1, the sheet material 20 is formed in a square shape, but the shape of the sheet material 20 is not limited to this. Sheet material 20 is good to be formed in the shape according to the arrangement course of insulation electric wire 30, etc. The portion where the insulated wire 30 is not disposed can be omitted as appropriate. For example, in the example shown in FIG. 1, it is conceivable that a portion where the insulated wire 30 is not disposed is omitted and formed into a T shape or the like. It is also conceivable that marking is applied to a portion of the sheet material 20 where the insulated wire 30 is not disposed, more specifically, to an empty portion of the wire disposed surface or a side surface opposite to the wire disposed surface. The marking shape is not particularly limited, and may be, for example, a character, a barcode, a QR code (registered trademark), or the like. Moreover, the information included in the marking is not particularly limited, and for example, it is conceivable that various types of information related to the wiring member 10 such as a manufacturing number, a terminal name, and a product number are included. Further, the marking means is not particularly limited, and various means such as those by printing and those by uneven shape can be adopted. Further, the sheet material 20 may be divided into parts and types according to the difference in color, for example.

The insulated wire 30 is a member that connects electrical components mounted on the vehicle. The insulated wire 30 is used as a power line for supplying power, a signal line for transmitting signals, and the like. All of the insulated wires 30 disposed on the sheet material 20 may be used as power supply lines or signal lines. Moreover, the insulated wire 30 used as a power supply line and the insulated wire 30 used as a signal line may be disposed so as to be mixed on the sheet material 20.

Specifically, each insulated wire 30 includes a core wire 32 and an insulating coating 34 covering the core wire 32. The core wire 32 is composed of one or more strands. A strand is formed with conductors, such as copper, copper alloy, aluminum, and aluminum alloy. When the core wire 32 is composed of a plurality of strands, the plurality of strands are preferably twisted. The insulating coating 34 is formed by extruding a resin material such as PVC or PE (polyethylene) around the core wire 32 or applying a resin paint such as enamel around the core wire 32.

The insulated wire 30 may be a general wire, a shielded wire, a twisted wire, an antenna wire, or the like. The insulated wire 30 may be a single object or various composites (such as a cable in which the composite is covered with a sheath). Below, the insulated wire 30 is demonstrated as what is a general wire which is what is called a round wire with a circular cross section.

The insulated wire 30 is connected to an electrical component mounted on the vehicle via, for example, a terminal or a connector provided at the end. In the example illustrated in FIG. 1, the end portion of the insulated wire 30 extends outward from the sheet material 20, but the end portion of the insulated wire 30 may be disposed on the sheet material 20.

The plurality of insulated wires 30 are arranged so as to have an intersection 40 on the main surface of the sheet material 20. Hereinafter, the insulated wire 30 located on the lower side in the intersection 40 is referred to as a lower wire portion 42, and the insulated wire 30 located on the upper side is referred to as an upper wire portion 44. Further, the insulated wire 30 that forms the lower wire portion 42 may be referred to as an insulated wire 30a, and the insulated wire 30 that forms the upper wire portion 44 may be referred to as an insulated wire 30b. The lower electric wire portion 42 is the insulated electric wire 30 that is located closest to the sheet material 20 in the intersecting portion 40. The lower wire portion 42 is normally in contact with the sheet material 20. The upper electric wire portion 44 is the insulated electric wire 30 that is overlapped on the opposite side of the sheet material 20 with respect to the lower electric wire portion 42 at the intersection 40. The upper electric wire portion 44 is normally in contact with the lower electric wire portion 42.

Here, the number of the lower electric wire portions 42 in one intersection 40 may be one or plural. Similarly, the number of the upper electric wire portions 44 in one intersection 40 may be one or plural. The number of the upper electric wire portions 44 and the number of the lower electric wire portions 42 in one intersection 40 may be the same or different. The example shown in FIG. 1 is an example in which the number of the upper electric wire portions 44 and the number of the lower electric wire portions 42 in one intersection 40 are both three. For this reason, three upper electric wire portions 44 cross over one lower electric wire portion 42 at one intersection 40. Further, one upper electric wire portion 44 exceeds three lower electric wire portions 42 at one intersection 40.

The plurality of insulated wires 30 are fixed on the main surface of the sheet material 20. As such a fixing mode, contact part fixation may be sufficient, non-contact part fixation may be sufficient, and both may be used together. Here, the contact portion fixing means that the portion where the insulated wire 30 and the sheet material 20 are in contact with each other is fixed by being attached. Non-contact part fixation is a fixation mode that is not contact part fixation. For example, a thread, another sheet material, an adhesive tape, or the like presses the insulated wire 30 toward the sheet material 20, The sheet material 20 is sandwiched and maintained in that state. Below, the insulated wire 30 and the sheet | seat material 20 are demonstrated as what is in the contact site | part fixed state.

As an aspect of such contact site fixation, contact site indirect fixation may be used, contact site direct fixation may be used, or both may be used in different regions. Here, the indirect fixing of the contact part is that in which the insulated wire 30 and the sheet material 20 are indirectly attached and fixed via an adhesive, a pressure-sensitive adhesive, a double-sided pressure-sensitive adhesive tape or the like provided therebetween. The direct contact portion fixing means that the insulated wire 30 and the sheet material 20 are directly attached and fixed without using an adhesive or the like provided separately. In the direct fixing of the contact part, for example, it is considered that the resin contained in at least one of the insulated wire 30 and the sheet material 20 is bonded and fixed by melting. Below, the insulated wire 30 and the sheet | seat material 20 are demonstrated as what is in a contact site | part direct fixation state.

In forming the directly fixed state of the contact part, the resin may be dissolved by heat, for example, or may be dissolved by a solvent. That is, the contact part directly fixed state may be a state where the contact part is directly fixed by heat, or may be a state where the contact part is directly fixed by a solvent. Preferably, the contact portion is directly fixed by heat.

At this time, the means for forming the contact part directly fixed state is not particularly limited, and known means such as welding, fusion, welding and the like can be used. For example, when forming a state in which the contact portion is directly fixed by heat is formed by welding, various welding means such as ultrasonic welding, heat and pressure welding, hot air welding, and high-frequency welding can be employed. Moreover, when the contact part direct fixation state is formed by these means, the insulated wire 30 and the sheet material 20 are brought into a contact part direct fixation state by the means. Specifically, for example, when the contact part directly fixed state is formed by ultrasonic welding, the insulated wire 30 and the sheet material 20 are brought into a contact part direct fixed state by ultrasonic welding. Below, the insulating coating 34 and the sheet material 20 are demonstrated as what is made into the state of the contact site | part direct fixation by ultrasonic welding.

In the case of direct fixing of the contact part, only one of the resin contained in the insulating coating 34 of the insulated wire 30 and the resin contained in the sheet material 20 may be melted, or both may be melted together. . In the former case, the melted resin is stuck to the outer surface of the unmelted resin, and a relatively clear interface may be formed. In the latter case, both resins may mix and a clear interface may not be formed. In particular, when the insulating coating 34 of the insulated wire 30 and the sheet material 20 include a resin that is easily compatible with each other, such as the same resin material, the resin may be mixed and a clear interface may not be formed.

The insulated wire 30 is fixed (here, welded) to the sheet material 20 at a plurality of positions spaced in the longitudinal direction. In the example shown in FIG. 1, the fixed portion P is indicated by a virtual line. However, the insulated wire 30 may be fixed to the sheet material 20 in series in the longitudinal direction.

The insulated wire 30b that constitutes the upper wire portion 44 is fixed (welded here) to the sheet material 20 at the first position P1 and the second position P2 across the intersecting portion 40, respectively. The insulated wire 30b is also fixed (welded here) to the sheet material 20 at locations other than the first position P1 and the second position P2. Below, the space | interval which the insulated wire 30b is being fixed to the sheet | seat material 20 in places other than the 1st position P1 and the 2nd position P2 is called the 1st space | interval D1. An interval between the first position P1 and the second position P2 is referred to as a second interval D2.

The first interval D1 and the second interval D2 are not particularly limited. When the first interval D1 and the second interval D2 are set to be relatively small, the insulated wire 30 is more firmly fixed to the sheet material 20, and when the wiring member 10 is bent, the insulated wire 30 is fixed between the fixed portions. Therefore, it becomes difficult to float from the sheet material 20. On the other hand, when the 1st space | interval D1 and the 2nd space | interval D2 are set comparatively large, the time concerning fixing the insulated wire 30 to the sheet | seat material 20 can be shortened. Accordingly, the first interval D1 and the second interval D2 may be appropriately set in view of these.

The first interval D1 is generally constant here. In addition, here, the first interval D1 is the same as the fixed interval between the insulated wire 30 that does not form the intersection 40 and the sheet material 20.

The second interval D2 is different from the first interval D1 here. In particular, here, the second interval D2 is smaller than the first interval D1. For example, the second distance D2 is preferably 30 millimeters or less. Further, for example, the second distance D2 is more preferably 20 millimeters or less.

The second interval D2 is smaller than the first interval D1 because when the wiring member 10 is bent, the portion of the insulated wire 30b that becomes the upper wire portion 44 is fixed more than the portion that does not form the intersecting portion 40. It is because it is easy to float from the sheet material 20 between. More specifically, the insulated wire 30b is bent in a direction away from the sheet material 20 at a portion beyond the lower wire portion 42 between the first position P1 and the second position P2. For this reason, when the wiring member 10 is bent so that the electric wire arrangement surface is on the inner side, the insulated electric wire 30b bends in the direction of floating from the sheet material 20 between the first position P1 and the second position P2. It is easy to float from the lower wire portion 42. On the other hand, the portion of the insulated wire 30b where the intersecting portion 40 is not formed extends along the sheet material 20. For this reason, when the wiring member 10 is bent so that the electric wire arrangement surface is on the inside, the portion of the insulated wire 30b that does not form the intersection 40 may bend following the bending direction of the sheet material 20. As a result, it is difficult to float from the sheet material 20.

Here, the bending of the wiring member 10 as described above may occur, for example, when the wiring member 10 is assembled to a vehicle. When the wiring member 10 is assembled to the vehicle, if the insulated wire 30 floats from the sheet material 20 due to the bending of the wiring member 10, the floating portion is caught by the surrounding members and damaged, or the insulated wire 30 is detached from the sheet material 20. There is a risk of coming off. In particular, the portion where the flat wiring member 10 is assembled is often a narrow portion, and there is a risk of being caught even if it is slightly lifted. In contrast, here, since the second distance D2 is smaller than the first distance D1, the insulated wire 30b is unlikely to float from the sheet material 20 even at the portion between the first position P1 and the second position P2. Therefore, these situations are less likely to occur.

The interval between the first position P1 and the intersection 40 is defined as a third interval D3. Further, the interval between the second position P2 and the intersecting portion 40 is defined as a fourth interval D4. Here, it is conceivable that the third distance D3 is, for example, the distance between the lower electric wire portion 42a on the first position P1 side of the lower electric wire portion 42 and the first position P1. Similarly, it is conceivable that the fourth distance D4 is, for example, the distance between the lower electric wire portion 42b on the second position P2 side of the lower electric wire portion 42 and the second position P2. The third distance D3 and the fourth distance D4 are set to be equal to or larger than the minimum bending radius (also referred to as the minimum bending radius, the allowable bending radius, etc.) of the insulated wire 30b that constitutes the upper electric wire portion 44, respectively.

Here, the minimum bend radius is a value that recommends that the insulated wire 30 be bent with a bend radius exceeding that when the insulated wire 30 is bent and disposed. More specifically, when the insulated wire 30 is bent, a circumferential length difference is generated between the inner peripheral side and the outer peripheral side, whereby a compressive force is applied to the inner peripheral side and the outer peripheral side is extended. It takes power. This force generally increases as the bending radius of the insulated wire 30 decreases. And when this force becomes large, there exists a possibility that the insulated wire 30 may buckle or break. Therefore, the minimum bending radius is set to the insulated wire 30 so that this force does not become too large.

The minimum bending radius is a value that is appropriately set according to the material, shape, arrangement state (fixed or movable, etc.) of the insulated wire 30. The minimum bending radius is usually a value set for each type of insulated wire 30. Usually, the minimum bending radius is often set to several times the diameter of the insulated wire 30.

Since the third distance D3 and the fourth distance D4 are set to be equal to or larger than the minimum bending radius of the insulated wire 30b constituting the upper electric wire portion 44, the insulated wire 30b constituting the upper electric wire portion 44 is more than the minimum bending radius. Bending with a small radius can be suppressed. Thereby, it can suppress that the insulated wire 30b is damaged or disconnected.

The insulation coating 34 of the insulated wire 30a constituting the lower wire portion 42 is fixed to the sheet material 20 at the position P3 of the intersecting portion 40. At this time, at least one of the insulation coating 34 and the sheet material 20 of the insulated wire 30a constituting the lower wire portion 42 in the fixed portion is thinner than the surrounding portion. Here, the insulated wire 34a of the insulated wire 30a constituting the lower wire portion 42 at the position P3 of the intersecting portion 40 and the sheet material 20 are welded to each other, so that the insulated wire constituting the lower wire portion 42 in the bonded portion is formed. At least one of the insulating coating 34 and the sheet material 30a has a small thickness. Thereby, the sum of the thickness of the insulation coating 34 of the lower electric wire part 42 and the sheet material 20 becomes smaller than before welding. Here, three upper electric wire portions 44 cross over one lower electric wire portion 42 at one intersection 40. As described above, when a plurality of upper electric wire portions 44 cross over one lower electric wire portion 42 at one intersection 40, a portion of one lower electric wire portion 42 that overlaps with the plurality of upper electric wire portions 44. Each insulating coating 34 may be welded to the sheet material 20.

Here, the insulating coating 34 of the lower electric wire portion 42 is welded to the sheet material 20 over the entire intersection 40 at one intersection 40. That is, in addition to each of the portions that overlap the plurality of upper wire portions 44 in the one lower wire portion 42 at one intersection 40, the insulating coating 34 between the portions that overlap the plurality of upper wire portions 44 is a sheet. It is welded to the material 20. However, there may be a case where the insulating coating 34 between the portions of the one lower side electric wire portion 42 that overlaps the plurality of upper electric wire portions 44 in one crossing portion 40 is not welded to the sheet material 20.

According to the wiring member 10 configured as described above, the degree of freedom of the conductor arrangement path in the flat wiring member 10 can be increased by crossing the insulated wires 30 on the sheet material 20.

Moreover, since the insulation coating 34 of the insulated wire 30a constituting the lower wire portion 42 is welded to the sheet material 20 at the position of the intersecting portion 40, the height of the intersecting portion 40 can be reduced, and thus the wiring member It can suppress that the thickness of 10 becomes large.

Moreover, since the insulated wire 30b which comprises the upper side electric wire part 44 is being fixed with the sheet | seat material 20 in the 1st position P1 and 2nd position P2 which pinch | interpose the cross | intersection part 40, respectively, even when the wiring member 10 is bent, it is an upper side electric wire. The portion 44 is less likely to float. At this time, if the second distance D2 between the first position P1 and the second position P2 is 30 millimeters or less, the upper electric wire portion 44 is less likely to float even when the wiring member 10 is bent, and the amount when floating is set. Can be small. In particular, when the second distance D2 between the first position P1 and the second position P2 is 20 millimeters or less, the upper electric wire portion 44 is particularly difficult to float even when the wiring member 10 is bent, and the amount when floating is set. Can be smaller.

Moreover, since the 3rd space | interval D3 and 4th space | interval D4 of the 1st position P1 and the 2nd position P2, and the crossing part 40 are more than the minimum bending radius of the insulated wire 30b which comprises the upper side electric wire part 44, respectively, the insulated wire 30b Is prevented from being bent with a bending radius smaller than the minimum bending radius, and the upper electric wire portion 44 that bends before and after the intersecting portion 40 is hardly damaged.

Moreover, the insulated wire 30b which comprises the upper side electric wire part 44 differs from 2nd space | interval D2 of 1st position P1 and 2nd position P2 along a longitudinal direction also in places other than 1st position P1 and 2nd position P2. Since it is being fixed to the sheet | seat material 20 with the 1st space | interval D1, it can fix according to the arrangement | positioning form of the insulated wire 30. FIG.

Further, since the plurality of insulated wires 30 are positioned on the sheet material 20, it is possible to identify the circuit even if it is a single color without being color-coded according to the circuit. Of course, the plurality of insulated wires 30 may be color-coded according to the circuit.

[Modification]
4 and 5 are schematic cross-sectional views showing a wiring member 110 according to a modification. FIG. 4 is a schematic cross-sectional view at a position corresponding to FIG. FIG. 5 is a schematic cross-sectional view at a position corresponding to FIG.

In the wiring member 110 according to the modified example, the portion of the insulated wire 130 that constitutes the intersection 140 is flat. Thus, when the part which comprises the crossing part 140 among the insulated wires 130 is flat, the height of the crossing part 140 can be made low. At this time, both the upper electric wire portion 144 and the lower electric wire portion 142 are flattened here, but this is not an essential configuration. Of the upper electric wire portion 144 and the lower electric wire portion 142, only the upper electric wire portion 144 may be flattened, or only the lower electric wire portion 142 may be flattened. However, when both the upper electric wire portion 144 and the lower electric wire portion 142 are flattened, the height of the intersecting portion 140 can be made lower than when only one of them is flattened.

In the wiring member 110, there is a portion that is not flatter than the portion constituting the crossing portion 140 in a portion other than the crossing portion 140 of the insulated wire 130. More specifically, a round electric wire is used as the insulated electric wire 130 in the wiring member 110 as in the embodiment. The part which becomes the cross | intersection part 140 is pressed and crushed among this round electric wire, and the part which becomes the cross | intersection part 140 is made flat. At this time, in the portion other than the crossing portion 140, the crossing portion 140 is configured in a portion other than the crossing portion 140 of the insulated wire 130 by the presence of a portion with a small amount even if the round electric wire is not crushed or is crushed There is a part that is not flatter than the part to be. For example, in the portion of the insulated wire 130 having the portion constituting the intersecting portion 140 disposed on the sheet material 20, the portion that does not constitute the intersecting portion 140 and is not fixed to the sheet material 20 is a round wire. Even if it is not crushed or crushed, it can be a small portion.

When the insulated wire 130 is crushed, it may be pressed with heating. Further, it is conceivable that the upper electric wire portion 144 and the lower electric wire portion 142 are pressed and crushed in an overlapping state. When these conditions are satisfied simultaneously, the heating temperature is preferably low. This is because if the heating temperature is high, the insulating coating 34 flows, and the upper wire portion 144 and the lower wire portion 142 may be short-circuited.

Thus, if there is a portion that is not flatter than the portion constituting the crossing portion 140 in the portion other than the crossing portion 140 in the insulated wire 130, even when a general-purpose wire such as a round wire is used as the insulated wire 130, The height of the intersecting portion 140 can be reduced by flattening the portion constituting the portion 140, for example.

Particularly here, the portion of the insulated wire 130 that constitutes the intersection 140 is flatter than the portion other than the intersection 140. That is, the part which comprises the cross | intersection part 140 among the insulated wires 130 is taken as the most crushed part. Thereby, the height of the intersection 140 can be further reduced. In addition, in the end part of the insulated wire 130, the insulated wire 130 may be flattened for connection with a terminal. In this case, the end portion of the insulated wire 130 may be flatter than the portion of the insulated wire 130 that forms the intersection 140. In this case, it is preferable that the portion of the insulated wire 130 that forms the intersecting portion 140 is flatter than the intermediate portion other than the intersecting portion 140.

The wiring member 110 is an example in which a part of the insulated wire 130 is flattened, but it is also conceivable that the insulated wire 130 is flattened throughout. In this case, as the insulated wire 130, an insulated wire 130 that is formed flat in advance, such as a so-called flat wire, can be employed. Of course, the insulated wire 130 may be formed flat across the entire round electric wire being crushed.

In addition, when a part of the insulated wire 130 is flattened, a portion of the insulated wire 130 that is disposed on the sheet material 20 is formed flat over the entire portion and is not disposed on the sheet material 20. There may be portions that are not flat. Thereby, the thickness of the part concerning the sheet | seat material 20 among the wiring members 110 can be made small.

In addition, in the example shown so far, the insulated wire 30 is not overlaid on the upper wire portion 44, but the insulated wire 30 may be further overlaid on the upper wire portion 44. That is, in the example shown so far, the insulated wire 30 intersects doubly at the intersection 40, but the insulated wire 30 may intersect more than three times.

Moreover, in the example shown so far, the one insulated wire 30 constituted the intersection 40 at one place along the longitudinal direction, but the one insulated wire 30 formed the intersection 40 at a plurality of places along the longitudinal direction. It may be configured. In this case, the one insulated wire 30 may constitute the upper electric wire portion 44 at all the intersecting portions 40, or may constitute the lower electric wire portion 42 at all the intersecting portions 40. possible. Further, the one insulated wire 30 may constitute the upper electric wire portion 44 at one intersection 40 and the lower electric wire portion 42 at another intersection 40.

In the example shown so far, one upper electric wire portion 44 exceeds a plurality of lower electric wire portions 42 at one intersection 40, but the lower side exceeds one upper electric wire portion 44 at one intersection 40. When the number of the wire portions 42 increases or the thickness increases, the second distance D2 between the first position P1 and the second position P2 increases. In this case, it is preferable to divide the lower wire portion 42 to be crossed into a plurality of groups to form a plurality of intersecting portions 40. That is, one upper electric wire portion 44 is configured to cross one group's lower electric wire portion 42 at one intersection 40 and to cross another group's lower electric wire portion 42 at another intersection 40. Good. Thereby, the number of the lower electric wire parts 42 that should be exceeded at one intersection 40 can be reduced, and the second distance D2 between the first position P1 and the second position P2 can be reduced at each intersection 40. In this case, the fixing location of the insulated wire 30 and the sheet material 20 constituting the upper wire portion 44 between the adjacent intersecting portions 40 may be one. This one fixed location can be regarded as the first position P1 with respect to one intersection 40 of the adjacent intersections 40 and the second position P2 with respect to the other intersection 40.

In the examples shown so far, the upper electric wire portion 44 at the intersection 40 is disposed along a curved path, but may be disposed along a linear path. When there are a plurality of upper electric wire portions 44 at one intersection 40, the upper electric wire portion 44 is disposed along a curved path, and the upper electric wire portion 44 is disposed along a linear path. Only one of them may be present, or both may be present.

Similarly, although the lower electric wire portion 42 at the intersection 40 is disposed along a curved path, it may be disposed along a linear path. When there are a plurality of lower wire portions 42 at one intersection 40, the lower wire portion 42 is disposed along a curved path, and the lower wire is disposed along a straight path. Only one of the portions 42 may be present, or both may be present.

In the examples shown so far, all of the insulated wires 30 arranged on the sheet material 20 have the same diameter, but the insulated wires 30 having different diameters are arranged on the sheet material 20 in a mixed manner. May be. For example, when mixing power lines and signal lines, the power lines tend to have a relatively large current compared to the signal lines, so large diameter insulated wires are used as power lines, and small diameter insulated wires are used as signal lines. It can be used.

In the case where the insulated wires 30 having different diameters are arranged on the sheet material 20 and the intersection portion 40 is formed on the sheet material 20, the insulated wires 30 constituting the intersection portion 40. As an example, either a large-diameter insulated wire or a small-diameter insulated wire may be employed. However, it is preferable that at least one of the insulated wires 30 configuring the intersecting portion 40 is a thin insulated wire, and it is more preferable that all of the insulated wires 30 configuring the intersecting portion 40 are thin insulated wires. When the insulated wire 30 constituting the intersecting portion 40 is a thin insulated wire, it is possible to suppress the height of the intersecting portion 40 from increasing.

When the insulated wire 30a forming the lower wire portion 42 and the insulated wire 30b forming the upper wire portion 44 are configured by a combination of a large diameter insulated wire and a small diameter insulated wire, It is good also as the electric wire part 44, and it is good also considering a thin insulated wire as the upper side electric wire part 44. FIG.

In addition, when a plurality of upper wire portions 44 cross over one lower wire portion 42 at one intersection 40, the plurality of upper wire portions 44 are configured by a combination of a large diameter insulated wire and a small diameter insulated wire. When it does, it is good to weld the part which overlaps with the large diameter insulated wire among the insulation coating 34 of the lower side electric wire part 42. FIG.

Moreover, in the example shown so far, the insulated wire 30a which comprises the lower side electric wire part 42 in the crossing part 40, and the insulated wire 30b which comprises the upper side electric wire part 44 are the terminal used as the connection destination in at least one edge part side. Although the parts are different, this is not an essential configuration. In some cases, the connection destinations may be the same terminal unit on both end sides. More specifically, in the example shown so far, when one end of the insulated wire 30a constituting the lower wire portion 42 is accommodated in the first connector and the other end is accommodated in the second connector, At least one end of the insulated wire 30b constituting the wire portion 44 is accommodated in a third connector different from the first connector and the second connector. On the other hand, when one end of the insulated wire 30a constituting the lower wire portion 42 is accommodated in the first connector and the other end is accommodated in the second connector, the insulated wire 30b constituting the upper wire portion 44. The one end portion may be accommodated in the first connector and the other end portion may be accommodated in the second connector.

In the example shown so far, the lower electric wire portion 42 and the upper electric wire portion 44 at the intersection 40 are not fixed, but may be fixed.

In the example shown so far, the insulated wire 30 is disposed only on one main surface with respect to the sheet material 20, but the insulated wire 30 is disposed on both principal surfaces with respect to the sheet material 20. May be. In this case, one insulated wire 30 may be disposed on both main surfaces with respect to the sheet material 20. For example, the insulated wire 30 may move from one main surface to the other main surface through the outer edge of the sheet material 20, or may pass through a recess formed in the sheet material 20, a through hole, or the like. You may move from the main surface to the other main surface.

Further, a protective material may be attached to the wiring member 10 in addition to the sheet material 20. The protective material is not particularly limited, and for example, an adhesive tape, a corrugated tube, a protective sheet, or the like can be used.

Further, a soundproof material may be attached to the wiring member 10 in addition to the sheet material 20. Such a soundproofing material is provided, for example, such that abnormal noise is less likely to occur when the wiring member 10 and another member are in contact with each other. The soundproofing material is not particularly limited, and for example, an adhesive tape based on a foamed resin such as urethane tape can be used. Further, for example, urethane foam or the like may be directly sprayed on the wiring member 10 to obtain a soundproof material.

When the protective material and the soundproof material are attached, the wiring member 10 may remain flat or may be rounded. Moreover, the said protective material and soundproof material may be provided in an electric wire arrangement | positioning surface, may be provided in the opposite side to an electric wire arrangement | positioning surface, and may be provided in both.

In addition, each structure demonstrated in the said embodiment and each modification can be suitably combined unless it mutually contradicts.

10, 110 Wiring member 20

Sheet material

30, 30a, 30b, 130 Insulated wire 32 Core wire 34

Insulation coating

40, 140

Intersections

42, 42a, 42b, 142

Lower wire portion

44, 144 Upper wire portion D1 First interval D2 First 2 intervals D3 3rd interval D4 4th interval P fixed point P1 1st position P2 2nd position P3 position of intersection

Claims

Sheet material,
A plurality of insulated wires arranged so as to have intersections on the main surface of the sheet material;
A wiring member comprising:
The wiring member according to claim 1,
The insulation coating of the lower wire portion at the intersection is fixed to the sheet material at the position of the intersection, and at least one of the insulation coating of the lower wire portion and the sheet material at the fixed portion Wiring member with reduced thickness.
The wiring member according to claim 1 or 2,
The wiring member by which the insulated wire which comprises the upper side electric wire part in the said crossing part is being fixed with the said sheet | seat material in the 1st position and 2nd position which pinch | interpose the said crossing part, respectively.
The wiring member according to claim 3,
The wiring member, wherein an interval between the first position and the second position is 30 millimeters or less.
The wiring member according to claim 4,
The wiring member, wherein an interval between the first position and the second position is 20 millimeters or less.
The wiring member according to any one of claims 3 to 5,
The wiring member whose space | interval of the said 1st position and the said 2nd position, and the said cross | intersection part is more than the minimum bending radius of the insulated wire which comprises the said upper side electric wire part, respectively.
The wiring member according to any one of claims 3 to 6,
The insulated electric wire constituting the upper electric wire portion is spaced apart from the interval between the first position and the second position along the longitudinal direction at locations other than the first position and the second position. A wiring member fixed to a sheet material.
The wiring member according to any one of claims 1 to 7,
The wiring member whose part which comprises the said cross | intersection part of the said insulated wire is flat.
The wiring member according to claim 8,
The wiring member in which the part which is not flatter than the part which comprises the said intersection part in parts other than the said intersection part among the said insulated wires exists.